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-- File: BOP_AreaBuilder.cdl
-- Created: Thu Dec 21 17:07:40 1995
-- Author: Jean Yves LEBEY
-- <jyl@meteox>
---Copyright: Matra Datavision 1995
class AreaBuilder from BOP
---Purpose:
-- The Root class for the algorithms that are used to
-- Reconstruct complex topological
-- objects as Faces or Solids.
-- Loop is the composite topological object of
-- the boundary. Wire for a Face. Shell for a Solid.
-- LoopSet is a tool describing the object to
-- build. It gives an iteration on Loops. For each
-- Loop it tells if it is on the boundary or if it is
-- an interference.
-- LoopClassifier is an algorithm used to test
-- if a Loop is inside another Loop.
-- The result of the reconstruction is an iteration
-- on the reconstructed areas. An area is described
-- by a set of Loops.
-- A AreaBuilder is built with :
-- - a LoopSet describing the object to reconstruct.
-- - a LoopClassifier providing the classification algorithm.
uses
State from TopAbs,
Loop from BOP,
ListOfLoop from BOP,
ListIteratorOfListOfLoop from BOP,
ListOfListOfLoop from BOP,
LoopSet from BOP,
LoopClassifier from BOP,
LoopEnum from BOP,
ListIteratorOfListOfListOfLoop from BOP
is
Create
returns AreaBuilder;
---Purpose:
--- Empty Constructor
---
Create(LS :out LoopSet from BOP;
LC :out LoopClassifier from BOP;
ForceClass : Boolean = Standard_False)
returns AreaBuilder;
---Purpose:
--- Creates the objectr to build the areas on
--- the shapes described by <LS> using the classifier <LC>.
---
Delete(me:out) is virtual;
---C++: alias "Standard_EXPORT virtual ~BOP_AreaBuilder(){Delete() ; }"
---Purpose:
--- Destructor
---
InitAreaBuilder(me :out;
LS :out LoopSet from BOP;
LC :out LoopClassifier;
ForceClass : Boolean from Standard = Standard_False)
is virtual;
---Purpose:
--- Sets a AreaBuilder to find the areas on
--- the shapes described by <LS> using the classifier <LC>.
---
CompareLoopWithListOfLoop(me;
LC : out LoopClassifier from BOP;
L : Loop from BOP;
LOL : ListOfLoop from BOP;
aWhat : LoopEnum from BOP)
returns State from TopAbs
is static protected;
---Purpose:
--- Compare position of the Loop <L> with the Area <LOL>
--- using the Loop Classifier <LC>.
--- According to <aWhat>, Loops of <LOL> are selected or not
--- during <LOL> exploration.
---
-- Result : TopAbs_OUT if <LOL> is empty
--- TopAbs_UNKNOWN if position undefined
--- TopAbs_IN if <L> is inside all the selected Loops of <LOL>
--- TopAbs_OUT if <L> is outside one of the selected Loops of <LOL>
--- TopAbs_ON if <L> is on one of the selected Loops of <LOL>
---
---
--- Iteration on Areas
--
InitArea(me:out)
returns Integer from Standard is static;
---Purpose:
--- Initialize iteration on areas.
---
MoreArea(me)
returns Boolean from Standard is static;
NextArea(me:out)
is static;
--
-- Iteration on Loops inside the Area
--
InitLoop(me:out)
returns Integer from Standard is static;
---Purpose:
--- Initialize iteration on loops of current Area.
---
MoreLoop(me)
returns Boolean from Standard is static;
NextLoop(me:out)
is static;
Loop(me)
returns Loop from BOP is static;
---C++: return const&
---Purpose:
--- Returns the current Loop in the current area.
---
---
---
--- Methods that are not for public usage
---
ADD_Loop_TO_LISTOFLoop (me;
L : Loop from BOP;
LOL: out ListOfLoop from BOP)
is virtual;
---Purpose:
--- Internal
---
REM_Loop_FROM_LISTOFLoop(me;
ITLOL: out ListIteratorOfListOfLoop from BOP;
LOL : out ListOfLoop from BOP)
is virtual;
---Purpose:
--- Internal
---
ADD_LISTOFLoop_TO_LISTOFLoop(me;
LOL1 : out ListOfLoop from BOP;
LOL2 : out ListOfLoop from BOP)
is virtual;
---Purpose:
--- Internal
---
Atomize(me;
state : in out State from TopAbs;
newstate : State from TopAbs)
is static protected;
---Purpose:
--- Internal
---
fields
myArea : ListOfListOfLoop from BOP is protected;
myAreaIterator : ListIteratorOfListOfListOfLoop from BOP is protected;
myLoopIterator : ListIteratorOfListOfLoop from BOP is protected;
myUNKNOWNRaise : Boolean from Standard is protected;
end AreaBuilder;
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